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Antifreeze for winterizing?

Hey guys,
I was talking to a friend the other day and he mentioned that he uses an antifreeze flush on his cooling system to winterize. He thought it also helped to prevent corrosion during the winter months. Any thoughts on this? Any problems?
I had not heard nor thought of that angle before.

Re: Antifreeze for winterizing?

What/where is the "water box" I checked the service manual for my 95 Monte Carlo and the storage procedures don't mention a water box.
I hope I didn't miss anything cause its outside in freezing weather now.

Re: Antifreeze for winterizing?

What model? Yes some models do trap water in the exhaust system either the expansion chamber or manifold or both. There are also some baffles in the waterbox that will be damaged if toomuch water is left in them and it freezes.

Providing service to all model Ski's in the Charlotte, Lake Wylie area.

Re: Antifreeze for winterizing?

On a 640 you should remove the water filter cover since water sits inside it and will crack the cover. Also remove the water hose from the top of the engine and pour in 1 Qt RV antifreeze after you are finished with fuel stabilizer and fogging the engine down the carb.

Providing service to all model Ski's in the Charlotte, Lake Wylie area.

Re: Antifreeze for winterizing?

98 770 TSL
I have a waterbox on one side of stern and muffler on the other .How should I drain them ,I see they are held down by bunji cords.are there pet**** drains like on the expasion chamber, or do they have to come outI did not see any drains.